What are your thoughts? Did you think the ending was a happy one?

The ending surprised me. I was looking back at some of the comments and some people saw the ending as a happy ending. Which I personally don't understand, when I read the last few pages of chapter 6.5, I was heartbroken. Sorry I don't know the names but I think yui? He. was talking to his parents and he lied to his parents that he has a girlfriend when he has a boyfriend. I don't know why he lied but I can only predict that it was because he knew his parents wouldn't accept them. Also as he was walking back he was doing pills and smoking and talking about how he is not wrong. And he was talking to discard and abandon them. Which I can only infer he was talking about people or the pill...